There are some points on Earth for which the following is true:

Starting from one of these points, you can walk 1 km South, then 1 km East, then 1 km North, and you will wind up back where you started from.

One such point is the North Pole. Where are others?

If you start 1 km North of the South Pole, then you would not be able to walk 1 km East. Also, when you then walk 1 km North again, you could go in any direction, and so would be anywhere up to 2 km away from your starting location.
So, starting 1 km from the South Pole would not work... for two reasons.

Posted by Half-Mad on 2002-05-29 21:45:03